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Finding the Fourth Proportional to 17,865.80, 24,654.87 and 9,908.76

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Solution

The fourth proportional to 17,865.80, 24,654.87 and 9,908.76 is: 13,674.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,865.80 : 24,654.87 = 9,908.76 : x
  2. Step 2: Convert to fraction form
    17,865.80/24,654.87 = 9,908.76/x
  3. Step 3: Cross multiply
    17,865.80x = 24,654.87 × 9,908.76
  4. Step 4: Simplify right side
    17,865.80x = 244,299,189.66
  5. Step 5: Solve for x
    x = 244,299,189.66/17,865.80
  6. Step 6: Final answer
    x = 13,674.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.